Differentiation : Connected Rates of Change : Example 2 : ExamSolutions

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Tutorial on differentiation in context of connected rates of change.
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Опубликовано:

13 окт 2024

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Комментарии : 64

@darkskull1155 8 лет назад

This channel is a life saver.

@ExamSolutions_Maths 11 лет назад

Good to have your support as usual, thanks.

@ExamSolutions_Maths 14 лет назад

Thank you - hope the other vids on this help?

@rimboruler 10 лет назад

I really hate this topic, the worst thing about C4. Makes the integration look easy, I think. Thanks for the help! :) (The morning before the exam! haha)

@ExamSolutions_Maths 10 лет назад

Nothing like a little revision before an exam. Anyway, good luck.

@rimboruler 10 лет назад

ExamSolutions I actually got this topic's question. It was easy. Unfortunately, there was a 9 mark integration question which I struggled with. I'd say there is many who would argue that's the hardest paper yet. Edexcel are stepping up the level. You'll have fun working through that! Thanks for all your help over the past two years, it has really helped. Hopefully I won't have to do them again! Fingers crossed.

@ps0116 5 лет назад

@@rimboruler I think you'd find Edexcel started "stepping up the level" with the new 2017 specification ahaha

@upliftsoul1 5 лет назад

@@ps0116 if only you heard about the maths paper 1

@pearlipop 11 лет назад

Hello, I came back to this channel after finding some difficulties with these questions. Yet again, you made me understand things :') Always grateful for this channel. It'll always be my go-to channel when I'm having problems with math!

@phoneinternet123 12 лет назад

Hi I was a little surprised that we are expected to know the formula to work out the surface area and volume of a sphere. What other formula for working out SA and volume would you recommend that we learn?

@economicsrevision9559 5 лет назад

This video and this channel are life savers

@AaronS825 Год назад

im so grateful for this video sir, you cured my frustration

@ahnafkhan8115 3 года назад

If dv/dt is steady, is the rate of change of area and the radius steady as well? A response would be greatly appreciated.

@Ħæïķăł 2 года назад

I have the same QUESTION unanswered!!

@ixion07 14 лет назад

@ExamSolutions ye they all did. The M1 ones especially, i didnt understand positional vectors but once i saw ur vid i understood it straight away.

@kwabenaapeaningisaac Год назад

Thank you soo much, your examples have really helped me grasp the concept of Rates of Change

@mallarijeric8630 4 года назад

thank you so much for that idea... can i have a permit to borrow the problem including the solution and also the first example

@tanicecruz2960 4 года назад

Thank you!

@ExamSolutions_Maths 14 лет назад

@EvilnessInMe I am confused with your question. The Volume of a sphere is (4/3)pi r^3 and the surface area is 4 pi r^2

@devaryssadefolaju2942 4 года назад

thank you very much, brilliant, very understandable

@ExamSolutions_Maths 4 года назад

Thank you. Pleased it helped.

@EvilnessInMe 14 лет назад

Is that the SURFACE area of a sphere is 4(pi)r^3? Can you get the actual area of a sphere, or is it just surface area or volume? The vids really great, I've been stuck on this for a while!

@pearlipop 11 лет назад

Yup, I went to your website and it sure is much easier. Browsing through all the vids one by one now :) Really good website.

@ExamSolutions_Maths 13 лет назад

@tomfromeds Thanks for that. I had the link wrong, it went to answer 1 rather than 2.

@ExamSolutions_Maths 11 лет назад

Hope you can get up! Have another go

@ExamSolutions_Maths 11 лет назад

Thanks

@francescacamarena971 8 лет назад

Really helpful, it was the first time I could actually solve an exercise by myself. Thanks!

@ExamSolutions_Maths 8 лет назад

That's good.

@evanpc7002 8 лет назад

dude i love u

@MrShahShaleen 12 лет назад

Thanks alot for all the videos on the C4 module. Great help. :)

@farshiddianat8068 3 года назад

how do i know in different questions what to put where (as in DV and DR and DT) I am very confused with different questions!

@ExamSolutions_Maths 12 лет назад

Good

@ixion07 14 лет назад

thanks a lot this was really helpful :)

@robinbautista4796 2 года назад

you are incredible

@mufaronyabereka 3 года назад

thank you soooo much

@tylorfrancois8838 9 лет назад

you the best man . Thank you so much

@ridhima1933 5 месяцев назад

Thanks sir😃

@mizrahman1913 9 лет назад

what kind of shapes would come up in a c4 paper. Do we have to remember the surface area and volume for every shape?

@ExamSolutions_Maths 9 лет назад

KSI GETHYPER Generally yes. Revise spheres, cones, cuboids, cylinders.

@mizrahman1913 9 лет назад

ExamSolutions alright thank you bro

@ExamSolutions_Maths 11 лет назад

I hope it went well.

@ExamSolutions_Maths 12 лет назад

Cones, cylinders

@BatistaR0X 13 лет назад

you're so awesome!

@k-math9246 6 лет назад

Sir, you are a boss

@SlimHandle 4 года назад

This becomes a whole new beast with the Covid pandemic. We not talking about the number of cases right now in terms of growth. Or the 'increase' in the number of cases. We're trying to reduce the 'rate of increase' of cases. The curve. A number which is in positive territory.

@Erica-rv7ze 4 года назад

ahhhhh thank you- I needed this :)

@ExamSolutions_Maths 4 года назад

You welcome Erica

@usuckbad2 13 лет назад

The joy when you get the answer right :)

@ExamSolutions_Maths 11 лет назад

Not sure as I am not familiar with the paper and question but if you solved the general integral I cannot see you losing too many marks.

@ickerish 11 лет назад

at first i didnt think you could flip dv/dr like a fraction because dv/dr is essentially not a fraction? it all made perfect sense.. i just didnt think you could manipulate values like that

@Stormrage095 12 лет назад

man i got to pass with these explanations :D

@al-anoud-123 8 лет назад

Awesome

@ExamSolutions_Maths 13 лет назад

@BatistaR0X Steady on

@blanchet2852 7 лет назад

Ooo very sneaky this one

@s.d0411 11 лет назад

thanks :)

@LigerDeath546 13 лет назад

@EvilnessInMe I know your comment is old. But yeah, he is talking about the surface area. Lol. I think you had a typo with your comment. Its 4(pi)r^2. :D

@ExamSolutions_Maths 14 лет назад

@xYxVx Cool

@ExamSolutions_Maths 11 лет назад

Cool, but my website is easier to navigate rather than the channel.